Ballistic vs Flag Protocol
Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.
Ballistic
This advanced ballistics calculator provides precise trajectory calculations for serious shooters. It accounts for atmospheric conditions, Coriolis effect, and gyroscopic spin, offering a comprehensive tool for hunting and range practice with extensive projectile data and a rangefinder.
- Advanced ballistics calculations
- Atmospheric condition adjustments
- Coriolis effect and gyroscopic spin
- Extensive projectile and load library
- Rangefinder and range log
- Heads-up display
- 3D trajectory imaging
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For serious shooters who are serious about their shot!!! ••• The most advanced ballistics calculator on the market ••• Trusted by the best: Armed Forces / Shooting Instructors / Lifelong Marksmen ••• Advanced Precision Ballistics 5 STARS: "I shoot on Team Louisiana Precision Rifles in Tactical rifle matches. Everyone on the team that uses Ballistic has had great results. This program has really been a game changer in the precision rifle world." - Bannon 5 STARS: "I have used this app for my 308 Rem 700 to my 338 Lapua. I have made some fun shots using this app. I have been using it ever since it was an iPhone app. US Marine Approved. Thanks!" - Ob1goose 5 STARS: "I used the data from Ballistic for a cold bore shot at 760 yards and center punched the plate. Sent another right on top of it. Done. No loading hassle or BS, just accuracy!" - Rick Ballistic is a highly-accurate ballistic calculator and range companion. With its advanced capabilities, Ballistic can calculate for atmospheric conditions, Coriolis effect, gyroscopic spin, and more. It's also much more. With a vast library of nearly 5,000 projectiles and factory loads, rangefinder, range log, and head-up display, Ballistic is a complete mobile companion for hunting or at the range. Ballistic's world renowned JBM ballistics engine delivers the gold standard in calculations that other applications compare themselves to. Advanced Edition Features: - iPhone internal barometer supported - Kestrel K5 LiNK / Drop integration (in-app purchase) - An advanced heads-up display for mounted operation - Advanced wind kit configurable for up to 8 wind sources - Bryan Litz' custom G7 ballistic coefficients - 3D Trajectory imaging for visualizing bullet path - Mil-Dot ballistics heads-up display Features: - World renowned JBM ballistics engine for the most precise, accurate calculations in the industry. - Load Library: 5,000 commercial and military projectiles and factory loads from leading manufacturers or specify your own projectile properties. Includes latest commercial data and military coefficients established at Aberdeen Proving Grounds. Also includes Bryan Litz' advanced G7 ballistic coefficients and bullet lengths. - iCloud Sync: Sync your favorites, optics profiles & range log to all of your devices - One-Touch Atmospheric Correction: Instantly adjust your calculations for zero or current atmosphere. Weather updated based on your current location (from a weather service), or enter your own atmospheric values. - Advanced Wind Kit: Powerful tool enabling you to create complex wind configurations for up to eight different wind sources! - Variable (Stepped) BCs: Includes many popular commercial projectiles from select manufacturers, for more precise calculations. - Ballistic Charts: Display a chart of the current projectile including drop, energy, and velocity. Compare wind drift. Compare up to eight projectiles on the same chart. Zoom charts up to 300% and save a full size chart to your photo album. - HUD: Full featured Mil-Dot ballistics head-up display; estimate using on-screen Mil-dot reticle, and see milling holdovers, with easy on-screen adjustment. - Target Log: Keep a journal of all your hunts, shoots, adjustments, points of impact, and scores. Includes group calculator, integrated score log, multiple target types, and camera and GPS support. Generate cold barrel and scoring reports for each rifle. - Angular Acquisition: Aim the device at the target like a remote control, or mount on your weapon to receive real-time angular correction. - Adjustable Units: Elevation and windage output units in inches, centimeters, arcminutes, milliradians, and click values ranging from full click to 1/8 click (or custom click values). - Calculate your own ballistic coefficients based on two chronograph measurements or data from the back of an ammo box. ... and much more!
Flag Protocol
This app provides up-to-date information on when to fly the US flag at full staff versus half staff. It's designed to be free and easy to use, ensuring you always display your flag correctly.
- Full staff vs. half staff guidance
- Up-to-date flag display information
- Easy setup
- Free to use
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Ever wondered when a US Flag should be flown at full staff versus half staff? So did we! That's why we created the Flag Protocol app so can you be up to date on how to display your flag. Best of all, the app is FREE and easy to set up. Get started today!
Screenshots
Verdict
The clearest difference is review sentiment: Ballistic at 57% against Flag Protocol's 0%. Ballistic also leads on rating (3.7 vs 2.6) and ratings volume (513 vs 5). Flag Protocol's advantage is in-app purchases (none vs 1). On price, update cadence, ads and device support there is nothing between them.
Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS
Both are free to download. Ballistic sells 1 one-off in-app purchase. Flag Protocol asks for nothing beyond the download.
Ballistic holds the better App Store score, 3.7 against 2.6. That said, the two scores are not equally well evidenced: Ballistic has 513 ratings behind it against 5, so its average is the more settled of the two. Written reviews point the same way: 57% of Ballistic's written reviews are positive against 0% of Flag Protocol's.
Ballistic ships an update every 3 months, Flag Protocol every 2 months. The most recent releases landed on October 2, 2026 and September 25, 2026 respectively.
| Parameter | Ballistic | Flag Protocol |
|---|---|---|
| Price | Free | Free |
| Rating | 3.7 (513 ratings) — better | 2.6 (5 ratings) |
| Positive reviews | 56.9% of reviews — better | 0.0% of reviews |
| Number of ratings | 513 — better | 5 |
| Update frequency | Every 3 months | Every 2 months — better |
| Ads | No | No |
| In-app purchases | Yes | No — better |
| Monetization | Free with in-app purchases | Free — better |
| Devices | iPhone, iPod — better | iPhone |
| Requires iOS | 9.0 — better | 18.2 |
| Further details — not scored | ||
| Size | 24 MB | 14 MB |
| Age rating | 17+ | 4+ |
| Developer | Federal Premium Ammunition | Curayt, LLC |
Customer experience
Ballistic
Flag Protocol
Bugs and requests
Ballistic
Reported bugs
3 issues- Windage values change unexpectedly when adjusting max range
- Favorites and target data being lost or inaccessible
- App crashing when trying to use certain features
Requested features
6 requests- Add support for newer calibers and loads
- Improve user interface and navigation
- Implement better data syncing and backup options
- Provide more detailed instructions and tutorials
- Add support for metric units
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- Integrate with external devices (e.g., Kestrel)
Flag Protocol
Not enough reviews yet to summarise bugs or requests.
In-app purchases
Ballistic
- Kestrel LiNK$9.99
Flag Protocol
No in-app purchases









